Music-leaf turner



` Ffmc VIE u .1 l. i925. 1,529,800

T. G. MARSHALL MUSIC LEAF TURNER A Filed July 6. 1923 2 Sheets-Sheet l mamas 'Jfansall March 17, 19:25.4 1,529,809

' T. G. MARSHALL MUS IC LEAF' TURNER Filed July 6. 19255 2 Sheets-Sheet 2 ffw@ Patented Mar. 17, l1925.

UNITED STATES PA TENT OFFICE.

THOMAS G. MARSHALL, AOF NASHVILLE, TENNESSEE.

To all whom t may concern:

Be it known that l, THOMAS G. MARSHALL, acitizen of the United States, residing Nashville, in the county of Davidson, State of Tennessee, have invented certain new and useful improvements in Music-Leaf ri'urners 5 and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to new and useful improvements in music leaf turners, and more particularly to that type wherein there 'is provided a main frame adapted to support a book or body of leaves to be turned, and aplurality of vturning frames adapted to carry the individual leaves and movable from side to side of the main frame.

lt is the general object of the invention to simplify and otherwise improve the structure, and to increase the efficiency and the readiness of attachment and operation of devices of this character.

It is more particularly an object of the invention to provide an improved actuating means for the turning frames, whereby they may be readily turned from one side to the other, of the main support-ing frame, and operable either by hand or by the foot of the player.

A still further object is to provide a device of this character wherein an operating or carrier arm is provided for moving the leaf t-urning frames to the right or left, for the purpose of turning the pages forwardly and backwardly, said carrier arm being' operable by a single lever, in the same direction, means being provided for engaging the carrier arm lto regulate the saine as to its forward or returning action on the leaf turning frames.

Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawings.

In the drawings: n

Figure 1 is a front elevation of the device.

Figure 2 is a horizontal sectional View on the line 2-2 of Figure 1, taken just above the cam members, and showing the flexible end of the carrier outer end of the cam member.

Figure 3 is an end view of the device, a portion of a piano being shown in section.

Figure et is a perspective view of one of the cam members and thetlexible end of the carrier.

Referring particularly to the accompanyino drawings, there is shown a rectangular engaging the D frame including the top and bottom rails 10 and 11, and the vertical end rails 12 andfl, the same being suitably connected together at the corners of the frame. Secured to and extending between the upper portions of the end rails 12 and 13, is a bar 1 4-, and pivotally mounted on this bar, adjacent the rail 13, is an angle or bell-crank lever 15, one arm of which has a link 16 connected thereto, while the other arm extends to a` point slightly above the top rail 10, and has a. shorter link 17 connected thereto. Carried by the upper rail 10, and extending vertically thereabove, are twoguides 18, and slidable in these guides is a rack bar 19, one end being connected to link 17, andr the other end being connected to the end of a coil spring 19', which is anchored to the top rail 10, adjacent the end rail 12. Dis` posed between the guides 18, and'extending from the front face of the top rail 10, to which it is secured, is a bracket 20, and rotatably supported in this bracket. is a vertical shaft 21, carrying on its upper end a gear 22 which meshes with the teeth of the rack bar 19. Projecting horizontally from the lower edge of the lower rail 11 is a ledge or shelf 23. Secured to and depending from the center of the lower face of this shelf is a bracket 24, which pivotally supports a lever 25, extending forwardly and rearwardly of the said shelf. To the rear end of this lever 25 is connected the other or lower end of the link 16, and to the forward end of the lever is pivotally connected a bent arm 26. To the free end ofthe arm 26 is connected a rod or wire 28, to which reference will be made later herein. Rotatably supported in and extending between the ledges 23 and 27, is a. vertical shaft 29. A plurality of angular U-shaped leaf turning frames 30 have the outer ends of their arms formed with the eyes 31 which are rotatably sup- Cil ported on the said shafts 2l and 29 for turning movement toward the right and left sides of the main frame, to carry the leaves of music forward and backward, as will be readily understood. Extending vertically between the arms of the frames 3() are the leaf engaging strips 32.

Secured to and extending forwardly from the intermediate portions of the end rails l2 and 13, are the brackets 33, and pivotally supported on these brackets, and extending forwardly and horizontally, are the arms 34 and 35, respectively. The outer end of each arm Sel and 35 is formed with a vertical flange 36, forming a cam element which curves in eccentric relation to the pivotal mounting of the carrier arm, and also of the frames 30. Carried by the rails l2 and 13, and extending forwardly therefrom, inwardly of the arms 34 and 35, are the bifurcated arms 3S, and secured to each arm, and extending into the bifurcation theieof, is a spring elbow 39, which is flexed by the bight of each leaf turning frame, as it passes said elbow and is retained thereby.

ligidly carried by the upper end of the shaft 2l, is the l-sliaped carrier arm 40, the depending or vertical leg il0 of which is provided with a flexible arm or linger el, arranged to engage with the cam surfaces 36 of the arms 34 and 35, as the arm l() reaches either side of the main frame of the device. Formed on the flexible linger el is a horizontal inwardly projecting lug or projection 42 which is arranged to engage behind the bight portions of the frames 30, successively, so that when the arm l() is moved on its pivot this projection will carry the frame 30 over to the left-hand side of the main frame, together with the music leaf engaged thereby. Each of the arms Se and 35 has an extension d3 disposed rearwardly of the main frame, and extending longitudinally of the rear of the frame, and pivotally connected at its ends to these exftensions is a rod eid. Carriedby the intermediate portion of this rod is a vertically disposed bifurcated member e5. Rotatably supported on the lower face of the shelf 23, is a forwardly and rearwardly extending shaft d6, the rearend ofl which is turned upwardly, as at Ll?,- with the terminal of said portion directed rearwardly and engaged in the bifurcation of the member l5. The forward end of the shaft l5 has a radially extending arm Li8 to which is connected a. downwardly extending rod or wire 4:9. The wire i9, and the wire 28, are arranged to be passed between the keys of a piano, on which the invention is adapted to be secured. The rear face of the main frame is provided with brackets 50 for attachment to the music rest board of a piano, as will be readily understood. Small holes are, of course, cut in the bottom wall of the piano frame, below the keys, for the wires 28 and e9, the lower ends of said wires being connected with pedals 52 and 5l, respectively, arranged on the floor, and adapted to be depressed by the feet of the player.

@n the upper face of the forward end of the arm 35, inwardly and concentric with the vertical flange or cam element 35 thereof, is a second flange or cam element 36, which is engaged by the lower end portion of the flexible linger ll so that the s aid finger will be flexed sufliciently to permit the projection thereof getting behind a frame 30. This is particularly useful when the turning carrier arm Ll0 is being operated to return the frames 30 to their normal righthand position, on the main frame. Such a construction prevents the arm e() from carrying the frame back, when said arm is returning for another frame, at the lefthand side of the frame.

ltwill be readily seen that upon depresslng the pedal 52 the lever 25 will be rocked causing the bellcrank l5 to draw the rack bar 19 toward the right, and turning the gear 22, which rotates the shaft 2l, causing the a 'm 40 to be swung from its position at the righthand side of the frame, to the left hand-side, carrying with it one of the frames 30.' lfihen the frame 30 is carried to the left side of the main frame it will pass or snap in front of the spring Velbow 39, and be retained thereby, together with the music leaf. As the pedal is released, the spring 19 will drawY the rack bar 19 back toward the left, causing the arm LlO to swing over to the right side of the mainV frame. As the arm l0 approaches the right side of the frame, the lower end of its spring linger ell will engage with the outer face of the ange or cam element 36, which will cause the linger to flex outwardly, until it has reached a position where its projection l2 stands opposite the space between the vertical bight portions of the two outer frames 30, when the end of the linger will snap from the far end of the flange or cam element permitting the linger to move inwardly and dispose its projection 'l2 behind the outermost of the frames 30,' ready to carry this frame over to the left, when the pedal 52 is again depressed.

Should the player desire to repeat a page, it becomes necessary to ret-urn the page to the right side of the frame, and to accomplish this the player depresses the pedal 5l, which rocks the shaft elfe, and shifts the rod 44 toward the left, which results in the rocking of the arms 3st. and 35 toward the right, simultaneously. rllhe inner flange or cam element 36 engages with the lower end of the linger Lll and withdraws the projec tion l2 from behind the frame 8O which is outermost at the right side of the frame. Then upon depressing the pedal 52, the arm lull lift

(lll

4() will be moved toward the left, and its linger 41 engage with the flange or cam element 36 of the arm 34, and cause the projection to snap in behind the frame carrying the page or leaf to be returned. Upon releasing the pedal 52, the spring 19 will move the arm 40 to the right carrying the frame 30 with it, and engaging the frame with the other spring elbow, the pedal 5l having been released almost. simultaneously with the pedal 52.

Carried by each of the end rails 12 and 13 is an inwardly directed, and movable arm 53 which is adapted to engage with the back portions of a book, which rests on the ledge 2, to hold the boolr in proper posit-ion, while permitting the leaves yof the book to be free for turning.

Also carried by the front face of each or" the rails 12 and 13, is forwardly extending L-shaped spring arm 54, which bears against the innermost of the turning frames, to normally urge them forwardly against the retaining spring 39, where each turning frame will be held in proper position for engagement therebehind of the spring finger 42.

On the shaft 46 is a. coil spring 55,'one arm of which engages with the arm 47, while the other end engages with the lower rail 11, to normally urge the shaft into normal position, that is with the cam members at the right of the device in position for engage ment by the turning member to grip and turn the leaves forwardly. rlhis spring is necessary at this point because of the fact that the wire 49 being of such small diameter as to readily pass between thekeys of the piano, the spring beneath the pedal 51 would have no upward pushing effect thereon. rlhe frames 30 are made of a. length to engage and turn the maximum sized page, but when smaller pages are to be turned the strips 30', which extend between the horizontal arms of the frames are slipped along said arms to lie directly behind the pages.

That is claimed is:

1. A music leaf turner including a main frame, leaf turning frames on the main frame, means for holding the turning frames releasably at one side of the mam frame, a carrier arm mounted on the main frame for swinging movement from one side thereof to the other, cam means on opposite sides of the main frame, al flexible linger on the carrier arm provided with a leaf turning frame engaging projection and arranged to engage and be flexed by the said cam means for disposing the projection in engagement with a leaf turning frame, and means for shifting the cam means whereby the flexible finger will be disengaged from a leaf turning frame at one side of the main frame and reengaged with a previously moved turning frame at the other side of said main frame, and means for restoring the carrier arm and said previously moved turning frame to normal oosition.

2. A music leaf turner including a main frame, leaf turning frames pivotally supported thereon, a pivoted arm for transferring the turning frames from one side of the main frame to the other, a pair of cam members movably mounted on the yopposite sides of the main frame, a flexible member on the said pivoted arm arranged to be normally engaged and flexed by one of the cam members, a projection on the flexible member arranged to be inserted between adjacent turning frames by the action of said cam on the flexible member, and means for shifting the cam members to cause the other cam to engage the flexible member and dispose the projection thereof in engagement with a previously turned frame for return ing said frame to its `original position.

3. A music leaf turner including a main frame, leaf turning arms on the frame, a carrier arm mounted on the frame for engagement with the turning arms to turn the latter from one side of the frame to the other, operatively connected cams at opposite sides of the frame, means for shifting the cams to dispose them in the path of the carrier arm whereby to engage the turning arms at one side of the frame and to release them at the other side, and another cram at one side of the frame and shiftable with the first cams to disengage the carrier arm from the turning arms at said first side and then reengage said carrier arm with the turning arms at said other side.

4. A music leaf turner including a. main frame, leaf turning arms on the frame, a carrier arm movable into engagement with the turning arms for swinging the latter from one side of the frame to the other, a single cam at one side of the frame, a pair of cams at the other side of the frame, connections between the first and second cams whereby said cams are shiftable to cause cooperation of the single cam successively with each of the said pair of cams to engage the carrier arm successively with the leaf turning arms at one side of the frame and to release said turning arms at the other side of the frame, at times, and at other times to engage the carrier arm with the turning arms at said second side of the frame and release the carrier arm at said first side.

In testimony whereof, l aflx my signature in the presence of two witnesses.

THGMAS G. MARSHALL.

Witnesses:

EARLY N. MARsHALL, JNO. MARSHALL, 

